This is the highest horsepower naturally aspirated F20c engine. We
will be working on further development for additional hp in the engine
and induction systems. The engine is producing in the 380-390
flywheel hp on E85. Within this season we should be able to raise it
into the 400-410 flywheel hp range.

Shot of the intake port and piston

Degreeing the camshafts

Custom billet cam set

Intake port

Exhaust ports

Just material out of the intake ports!

Porting

You can see how much the the port has to be opened up for the larger
size valves.

Installed oversize valve seats

I have been using nickel-bronze seats on the race car heads with good
results.

Working on Jake's engine